Pub. 42004-645L2C
Model 723-801 SmartSeries
®
Remote Subset Amplifier
Page: 14 of 15
d:\standard ioms - current release\42004 instr. manuals\42004-645l2c.doc
01/04
Fault Message
Cause and Effect
Possible Solution
Supervised Audio
Path
Speaker Voice
Coil
Cause
—The station is detecting no ambient noise
at the speaker or is detecting an ambient noise
lower than the configured failure threshold. This
may occur if there is a fault in the speaker wire or
a fault at the voice coil. This also may occur if
the ambient noise at the speaker is too low, as is
the case in a quiet room.
Effect
—The station continues measuring speaker
ambient noise. When acceptable noise levels are
subsequently measured, a restore message is sent
to the MCU.
•
Verify that the speaker
wire is connected and
intact.
•
Verify that the voice coil
is connected and intact.
•
Verify that the Offset
Level adjustment is set
correctly.
•
Replace the Base-24
PCBA.
Polled device
Cause
—This message is output by the MCU
when it loses communication with the station.
This may occur if there is a fault in the page line,
if the station is powered-down, or if there is some
fatal malfunction within the station.
Effect
—The MCU continues to attempt
communication with the station. A restore
message is output when communication is
resumed.
•
Verify that the page line
is connected and intact.
•
Verify that the station is
installed correctly.
•
Replace the Base-24
PCBA.
Polled End-of-line
device
Cause
—This message is the same as the “Polled
device” fault, except that the affected station has
been defined as an end-of-line station in the MCU
configuration.
Effect
—When this fault occurs, the red
EOL FLT
LED on the Page/Party
®
Interface (PPI) bezel
lights. The LED extinguishes and a restore
message is output when communication with the
station is resumed.
•
Verify that the page line
is connected and intact.
•
Verify that the station is
installed correctly.
•
Replace the station
assembly.
Replacement Parts
Model Number
Description
12523-001
GAI-Tronics Nameplate Kit
12530-001
Transformer/Connector Subassembly
12555-001
FSK PCBA Kit
12556-001
Handset Amplifier PCBA Kit
12557-101
Base-24 PCBA Kit
12558-001
Power Supply PCBA Kit
